I am not sure that I would use it in a production application for fear of the maintenance problems (where do you get Boo programmers from?).
Things that I particularly like are:
Booish – being able to interactively play with practacally any .NET class without the need for a heavyweight IDE to be open.
The fact that you can post the source code to a blog like this without messing up the formatting!
I am planning a series of topics on Boo and the .NET 3 Pillars:
- WF – windows workflow
- WPF – windows presentation foundation
- WCF – windows communication framework
At first I will be using Boo plus Nant but may need to stray into MSBuild.